Spectrophotometric determination of Cu2+ and Pd2+ ions using some acetyl formazans

ABSTRACT

The formazan compounds have received great attention due to their biological activity and dyeing properties for a variety of fabrics [1,2] Due to their skeleton as good carriers of pi-bonding and chelating properties, they have been used as analytical reagents [3]Malevannyi and Shikhova [4] reported a Spectrophotometric method for the determination of Mn[2+] using 1,5-bis [2-hydroxy-5-sulfophenyl]-3-acetylformazan. Bigma et al. [5] developed a Spectrophotometric procedure for the microdetennination of Cu in Mg metal and some of its Mg alloys using 1,5-di [2-hydroxy-4-nitrophenyl]- 3- acetyl-formazan. Christian [6] reported a method for the determination of lithium using TMC-Crown formazan. Novel pyridyl formazan derivatives were synthesized and the characteristic analytical properties of their complex compounds with various transition metal ions were investigated [7]. The present investigation deals with the use of l,5-diphenyl-3- acetylformazan [I] and l,5-bis[o-carboxyphenyl] -3- acetylformazan [II] for the Spectrophotometric determination of Cu and Pd